Brian Crower

Subaru EJ205

The Subaru Impreza WRX, or "Impreza Rex" is a turbocharged version of the Subaru Impreza, a small all-wheel drive sedan. The WRX has become a popular choice for automobile enthusiasts wherever it is sold for its high performance, great handling, and relatively affordable price. Originally introduced in 1992 in Japan, then shortly afterwards in Australia and Europe, the WRX had a turbocharged flat-4 2.0 L engine producing 211-220 PS (155-162 kW), according to the ECE or JIS standards. From 1997, the restyled WRX offered 227 PS (167 kW). Compared to the base Impreza, the WRX had wider low-profile tires, larger brakes (further improved in later versions with the fitting of four-piston calipers and larger discs), and firmer, higher quality suspension components. The United States model Impreza WRX features the EJ205 (non AVCS), although the EJ207 (AVCS) found internationally can be converted to non-AVCS format with a little work.

Stage	Description	Cam #	Adv. Dur.	Dur @ .050	Lift (in)	Lift (mm)	Kit #
	Street/Strip Specification Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK.	BC0601 114°	272°/272°	222°/222°	.400"/.400"	10.16/10.16	BC0600
	Race Specification Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0600.	BC0602 114°	280°/280°	234°/234°	.425"/.425"	10.80/10.80	BC0600
	USDM EJ205 ('02-'04 WRX)	Stock	256°/256°	205°/205°	.365"/.361"	9.27/9.17
	JDM EJ207	Stock	256°/256°	205°/210°	.325"/.339"	8.25/8.61

Bucket Diameter: 1.220"
The above intake cams will not work with AVCS (EJ207 or EJ257).

VALVE SPRING/RETAINER KIT
Designed for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances.

Kit #	Spring #	Retainer #	Description
BC0600	BC1600	BC2300-16	Single spring, titanium retainer

Spring Pressure:
BC1600 Seat: 1.420" @ 60 lbs / Open: 1.000" @ 160 lbs / Coil Bind: 0.860" (no machine work required)

STAINLESS STEEL VALVES
BC valves are made from premium stainless steel, fully machined and swirl polished for ultimate air flow. Dished head for added weight savings and increased valve control at high rpm. Standard and oversize head.

Part #	Description #
BC3600	36.0mm Intake (standard head diameter)
BC3601	32.0mm Exhaust (standard head diameter)
BC3604	37.0mm Intake (+1mm head diameter)
BC3605	33.0mm Exhaust (+1mm head diameter)

SUBARU EJ205 2.29L STROKER KIT

• BC 4340 billet steel crankshaft (79mm stroke). Not an OEM EJ25 crank.
• BC 4340 Econo or Pro Series steel billet rods w/ARP 220,000 psi fasteners.
• CP aluminum forged pistons (any bore size, any compression ratio).
• 5100 Series carbon steel alloy wrist pins. 9310 pin upgrade available.
• Ductile iron plasma top rings, tapered second ring, low tension oil rings.
• ACL Race Series bearings sold seperately.
• Fully system balanced and ready to install.

Kit #	Crank #	Rod #	Piston #	Desc.
BC0608	BC5609	BC6608	BC7609	79mm stroke w/ BC625+
BC0609	BC5609	BC6609	BC7609	79mm stroke w/ bROD

The BC stroker kit for the Subaru EJ20 engine incorporates a proven 79mm stroke, steel billet crankshaft, not a factory STi or EJ25 crank. Depending on bore size that you decide, the BC kit will take you up to a 2.29L with a safe 96mm bore. As usual, each BC kit features custom CP forged aluminum pistons, premium alloy wrist pins, full ring pack and buttons. Big time power and torque gains. BC Econo rods rated to 600 horspower, BC Pro Series rods rated to 800+ horsepower.

Stock Specifications:
EJ20 92mm Bore x 75mm Stroke - 7.913" Block Height

LEFT COLUMN